Education Technology

Middle Grades Math: Creating Parallel Lines and Transversals

by Texas Instruments


  • Students will explore the angles formed when parallel lines are cut by a transversal by moving points F and D.
  • Students will use informal arguments to establish facts about the angles created when parallel lines are cut by a transversal.


  • parallel
  • transversal
  • linear pair
  • corresponding angles
  • supplementary

About the Lesson

This activity is designed to be student-centered, with the teacher acting as a facilitator while students work cooperatively. The time varies for this activity depending on whether the TI-Nspire document (.tns file) is provided or created from scratch by the students.